#apertus IRC Channel Logs

4k. 4k. 4k.

yeah, 4k looks completely different than 2k :)

Using the mythical numbers of the sunglasses-cum-camera vendor, the Panavision Genesis mark one was a 6k camera.

(With perhaps an exception for rexbron)

time for bed

good night!

dmj_nova: why that question about low light with higher frame rate ?

of course, it's also possible that the light-sensitive region is exactly the same and some other circuitry is just being clocked higher

you can get the same framerate already for a window

at twice the framerate at least :)

my concern was mainly that the image not be noisier when framerates were equal

I don't get it

what do you mean by equel ?

so you have the old CMV12000 and the new one

then compare the images each sensor produces

a) get identical images

only CMOSIS can answer that

was just explaining what I meant to FergusL

in the time you spent today asking people the question who cannot know the answer and explaining why you think it is a good question, you could have already formulated a proper request/questions for cmosis

troy_s: I do know some who have used the F65.

no, only planed to be shot on F65, was shot on Red Epic... or maybe they shot the vfx shot with F65

maybe me at the AFC micro-salon where Sony has a booth !

sorry I meant green screen shots

http://mango.blender.org/production/4-tb-original-4k-footage-available-as-cc-by/

though some in #blender and #blendercoders will have

FergusL: nope, bridge shots were one take, you're right on that

everything but the bridge is green screen or cgi though

same, night

guesst: :-/kinda tired of explaining what the original question was but here goes:

it is not public info yet?

our guess is that they're just clocking the same chip higher without any changes that affect image quality, but I should ask CMOSIS to know for sure

well, in global too.. you just get the image out quicker and gets less corrupted

also note, that when you run the sensor at the max speeds, you might end up with disabling some onchip noise correction..

so you have just GS, that is bad

well, it's just the way it is :)

does not need to be :) there are sensors capable both rs/gs

which means using more gain

with 24 fps you can collect up to 1/24

sigh

the exposition and readout are two separete processes

readout >= exposition (fps)

output frame interval >= exposure duration

ther is no

get out in speed of 1/150 s

/facepalm

okay

you shoot 24 :)

the new sensor can shoot up to 300 frames every second

that both applies for full 12MP res?

both sensors can shoot at lower framerates

in equal frame rate, shutter speed and gain setting, the new one could do better, given that the data receiving electronics is capable of higher speeds

and the only difference is that this is a new binning class

but I'm not sure if this is the case

no, not pixel merging

rather than throw out chips that can't handle full clock speed or have a bad memory unit or processing core, you disable the bad components or clock them slower, then sell them as a lower model

i would say it is a different design

1) they changed everything (including the light detecting region) -> could impact noise/sensitivity

3) this is a higher bin but otherwise identical -> almost certainly equal or slightly better image quality

or just ask the company what they changed

we couldn't compare until our next steps anyway

we're still at first images

more advanced prototype. We need to design a processing board before we can get full speed video output

plus our initial images aren't calibrated or anything

so the funding campaign is moving to next year? what do you need for the processing board?

so a sensor that did pass QA is necessary to test image quality too

spent way to much time explaining this stupid question :P

we need to summarize all discussiobs somewhere else

what thrill?

The overall FPS has no impact.

dmj_nova: Of being around an F65.

post porked?

I mean the pipeline was... a little odd.

format conversions, funny colorspaces and such

There is so much of a knowledge gap regarding color etc.

yeah

Which drives me bloody batty.

though to be fair, linear is about all 3D rendering can or should care about

of course what you do from that linear output is different

I demoed how to process it via OCIO.

Both display linear and scene linear is the _only_ way to correctly blend light.

So even a dissolve is screwed if you aren't in a display or scene linear model.

Add, blend, multiply, anything really.

And all of this is inevitably crap that people have to learn on the road to attempting what appeared so simple when they started (programming a decoder, player, etc.)

sounds like something that should be documented for such people

Not worth it. No one would ever attempt it. Hence why I chuckle at some of the libraries.

no one would ever attempt documenting it?

Which can be positive as well I suppose.

link?

guesst: A camera is both.

you can't build a functional piece of hardware without software to make it run

so the primary goal is to make a camera, and the rest is just to make use of it

no, the project is about making the camera

guesst: Not sure I would divide the goal into a metric of primary / secondary. The model is broken

Simply parts of a whole

guesst: Well processing images has to take the pipeline into account.

for me it seems already suboptimal by trying to cover all those aspects

huh, this chart has suddenly helped me understand why I grade images the way I do.

morning everyone!

hello!

not much I guess :)

:)

dmj_nova: That wouldn't be the first time this has happened ;)

thinking that a camera that is likely limited by processing or storage limits will become faster based on a sensor upgrade

Sasha_C: thinking that a camera that is likely limited by processing or storage limits will become faster based on a sensor upgrade

dynamic range of 60dB equals to 10bit / 10stops, right?

yes

'black sun' artifacts?

http://vimeo.com/52965171

but on ibc we turned the camera up to the ceiling - to sharp lights and it was there too

so does the cmv12000

see you later

caio

test 1 2 3

r

'evening there

good night!

guesst: Sub optimal to cover them? Yes if you think building software. But you need to think harder.

guesst: _Every_ design choice is non-neutral and comes with very particular implications for worlflows.